46 results about "Incisor tooth" patented technology

A anti-snoring and anti-obstructive sleep apnea apparatus has a plate or metal frame tongue shelf splint to prevent the flaccid tongue falling back, a palate shelf splint projection to elevate the soft palate and prevents its vibration, incisors teeth receptacles or pockets sockets for jaw displacer to hold the mandible moved forwards, and to prevent it falling back held between the bite block, catheter-tubing to administer oxygen supplementation from the external source which reduces air turbulence and promotes nasal breathing, a submental suprahyoid muscle stimulator placed below the tongue, and above the mucous membrane. An injection port is provided to administer any therapeutic agents and local anesthetics to reduce the sensitivity of the tongue and oral cavity mucus membrane lining to the foreign objects. This device is used to deliver therapeutic agents to prevent and to treat halitosis and various diseases.

A TemporoMandibular Joint (TMJ) balancing appliance and a method for using the same are provided, in which a first base portion accommodates incisor teeth, a second base portion is extended from a left side of the first base portion and accommodates left molar teeth, and a third base portion is extended from a right side of the first base portion and accommodates right molar teeth. The first base portion includes an upper part for accommodating upper incisor teeth and a lower part for accommodating lower incisor teeth and has a center for accommodating the upper and lower incisor teeth higher than the left and right sides.

A method for measuring transverse and longitudinal inclinations of teeth includes the steps of 1, performing three-dimensional simulation model reconstruction; 2, selecting reference points, for a simulation model, drawing dental arch reference points FA and basal bone reference points AP at incisor teeth and first molars in left and right lower jaws in the simulation model, respectively; 3, establishing a coordinate system, defining a midpoint among four points FA31', AP31', FA41' and AP41' as an origin O of the coordinate system, defining a midpoint among four points FA36', AP36', FA46' and AP46' as a point Y, defining a line OY as an axis y, using a plane formed by a mesial contact point connecting to the incisor teeth in the lower jaw and mesial buccal cusps of the left and right first molars, as a plane xy, namely an occlusal plane; and 4, measuring transverse and longitudinal inclinations of teeth. The method has the advantages that observation is direct, detection is convenient and results are accurate.

The invention provides a ligula habit appliance. A main body material is a latex component, and is in an adjustable metallic framework structure. The appliance comprises a lip bumper, a drag hook, a palate bead and an occlusal pad, wherein an metallic framework of which the deformation can be adjusted is added to inside of a latex main body of the lip bumper, so that adjustment according to different soft tissue conditions of different patients is facilitated, and lip and cheek frenum and mucosa are prevented from being oppressed; a metal ring retractor extends out of an incisor teeth position in an upper jaw of the outer side of the lip bumper, and can penetrate through an index finger, so that training of lip muscle functions is facilitated; the palate bead is located on the inner side of the appliance; an ellipsoid of which the diameter is 5*10mm is arranged on the position corresponding to incisive papilla of the upper jaw, and is suitable for training the tongue muscle position; and the occlusal pad is made of a simple latex material, and comprises canine teeth, lateral teeth and incisor teeth on the left side and the right side; second molar teeth, which extend to a posterior area, of the occlusal pad are adopted as a special design for open-bite patents.

The invention relates to an appliance for guiding a mandible forward and / or getting rid of a bad habit of sucking a lower lip and a preparation method thereof. The involved appliance comprises a base plate, the base plate is provided with fixing components, a palatal side inclined-face guide plate and a lower incisor teeth cap for guiding the mandible forward, and the palatal side inclined-face guide plate is provided with inclined guide wires. The involved preparation method comprises the following steps: acquiring a relationship in clinic; bending the fixing components and the inclined guide wires; laying a mandible tongue side with wax from a mouth bottom to a position about 1-2 mm above a lingual frenum, and fixing the inclined guide wires with wax; and connecting the fixing components into a whole at a palatal side by plastic cement, preparing the palatal side inclined-face guide plate, and connecting with the inclined guide wires fixed by the wax into a whole by plastic cement. According to the appliance, the palatal side inclined-face guide plate is added with the inclined guide wires, the mandible incisor teeth cap guides the mandible forward, the mandible is passive to extend forward, at the same time, the lip is limited to incline down to anterior teeth, a force source is concentrated at maxillary and mandible anterior teeth areas, mandible posterior teeth have no contact with the appliance, and mandible molars can be extended, so as to correct deep overbite and correct and cure an Angle II type relationship.

The invention discloses a method for teeth model parameterization. The method comprises the steps of calculating geometric center points of all teeth; fitting an upper jaw dentofacial plane and a lower jaw dentofacial plane, and calculating an upper jaw dental arch curve and a lower jaw dental arch curve; determining tip points of canine teeth of the upper jaw and the lower jaw; determining far-near-middle points, near-middle points and far-middle points of the teeth; determining a teeth coordinate system according to the tip points, the far-near-middle points, the near-middle points and the far-middle points; calculating FA points, central points and cutting edge points of the teeth, and the near-far-middle cheek points of accessional teeth; performing lip cheek-direction adjustment, tongue jaw-direction adjustment, single-tooth characteristic point adjustment and original tooth die long-axis adjustment; arranging the teeth at a single jaw according to a tooth position number sequencefrom incisor teeth along a dental arch through using the middle line of the dental arch as a reference; calculating a collision value between the single tooth and the adjacent tooth with a relativelysmall tooth position number, and moving a near-middle edge point according to the collision value. The method of the invention effectively improves accuracy and rationality of the parameters after teeth model parameterization.

The invention relates to an anterior tooth such as an incisor tooth or canine tooth built up in layers, with a cutting-edge material (30) at least partially covering a dentine material (28). At its occlusal end (38), the dentine material has projections (42) and / or irregularities (42, 46 and 48), which extend in the occlusal direction and correspond to 0.05 to 0.4 times the total length of a tooth.

A tooth inclination apparatus for allowing assessment of the angle of inclination of an incisor tooth or cast thereof includes a plane element providing a flat datum surface for resting against e.g. the upper molars in the maxillary plane. From the underside of the plane element projects a protractor portion with a graduated angular scale which measures the angular deviation of an indicator pin pivoted to the plane member and moved to contact the tooth whose inclination is being measured. Other mechanical or electro-optic devices may be used to determine the inclination of the incisor relative to the datum surface.

The invention discloses a mouth breathing corrector and a preparation method thereof, and the mouth breathing corrector comprises a soft vestibular shield, wherein a tooth and gum model is arranged on the soft vestibular shield; a hard retainer is pressed on an incisor tooth model on the inner surface of the soft vestibular shield; the hard retainer comprises a first base tray and a second base tray; the bottom of the first base tray and the bottom of the second base tray are closed into a whole; and an incisor tooth outer surface model is pressed on the second base tray. The preparation method comprises the following steps: preparing an upper jaw working model and a lower jaw working model; trimming the working models; adopting a laminator to press the hard retainer; trimming the original shape of the hard retainer; placing the standby hard retainer on the incisor teeth of the upper jaw or lower jaw working model; placing the upper jaw and lower jaw working models which are occluded together on the laminator for forming the original shape of the soft vestibular shield; and trimming the original shape of the soft vestibular shield, thus obtaining the mouth breathing corrector. By utilizing the mouth breathing corrector provided by the invention, the defects in the prior art are solved, the phenomenon of shedding at night is thoroughly avoided, and a patient is ensured to have no soreness of teeth.

Described is an orthodontic aligner implement that can ensure the accuracy and efficiency of clear aligner orthodontic therapies as well as increase patient compliance by reducing discomfort and combining functionality into a breath-freshening medium. The implement includes a consumable mass having at least two channels disposed on opposite sides of the mass and traversing the width of the mass. The channels are adapted to seat between opposing anterior or incisor teeth. Also described is a method of positioning an orthodontic aligner into a prescribed position that includes placing the aligner approximately in the prescribed position in one's mouth, placing the aligner implement described above into the mouth, and applying the implement in contact with the aligner in one's mouth.

The invention relates to a dental-facial deformity orthopedics system and a design method thereof. The dental-facial deformity orthopedics system comprises an upper jaw shell dentistry apparatus having a shell-shaped body, wherein a protrusion part is arranged at a position of a molar tooth region corresponding to the shell-shaped body in the direction opposite to the jaw in a protruding manner; atraction part is arranged on the labial side surface of the shell-shaped body; a position fixing part which is in snap fitting with a position fixing accessory is arranged at the molar tooth region corresponding to the shell-shaped body; the protrusion part cooperates with the molar tooth region in the lower jaw for performing meshing reconstruction, so that the incisor teeth on the lower jaw andthe incisor teeth on the upper jaw tend to be aligned; the traction part cooperates with the upper jaw to perform extra-jaw reverse traction, so that the jaw bones are subjected to shape straightening and re-molding; and the position fixing part is clamped with the position fixing accessory to prevent the upper jaw shell dentistry apparatus from falling from the teeth which cooperates with the upper jaw shell dentistry apparatus. The design method is a design method of the dental-facial deformity orthopedics system. The dental-facial deformity orthopedics system having treatment pertinence can be designed, so that the treatment of dental-facial deformity is realized.

The invention relates to a functional retainer, in particular to an occlusion functional retainer. The functional retainer comprises an upper jaw part and a lower jaw part, wherein the upper jaw part comprises arrow clasps fixed on molars on left and right sides, single-wall clasps fixed on bicuspids on left and right sides, and occlusal pads for connecting the arrow clasps with the single-wall clasps; the lower jaw part comprises interproximal hooks fixed on incisor teeth and canine teeth, arrow clasps fixed on canine teeth on left and right sides, and occlusal pads for connecting the arrow clasps with the interproximal hooks; the upper jaw part and the lower jaw part further comprise guide bevels respectively; the guide bevels are positioned on inner sides of the canine teeth; angles between the guide bevels and occlusal surfaces are 40-60 degrees; an inclination direction is opposite to a deviation mandibular direction. As proved by practice, the occlusion functional retainer provided by the invention can establish new occlusal balance of masticatory muscles rapidly, and has very good clinical application effect and high popularization value.

In a timber incising machine incorporating a shaft mounted rotating incisor drum, an improved incising drum comprising a shaft configured for rotation by the incising machine; a plurality of circular incisor plates, each of the incisor plates having a plurality of equally spaced incisor teeth extending radially from the radial edge of the circular incisor plates at a desired location. A plurality of incisor plates are stacked in a desired quantity and positioned to place the incisor teeth in a desired pattern and fixed together to form a plate array as a single unit. A plurality of the plate arrays are mounted on the shaft so as to form a rotatable drum having a plurality of radially extending incisor teeth positioned in a desired pattern.

The invention provides a device for closing a tooth-extraction gap of an upper jaw, and relates to the field of clinics of orthodontics. According to the device for closing the tooth-extraction gap of the upper jaw, extracted teeth are left-side and right-side first premolar teeth of the upper jaw. The device for closing the tooth-extraction gap of the upper jaw comprises a bracket, buccal tubes, an arch wire, first draw hooks and second draw hooks, wherein the bracket is used for connecting left-side and right-side second premolar teeth of the upper jaw and the first premolar teeth into a whole; the buccal tubes are attached to the buccal side surfaces of the left-side and right-side second premolar teeth of the upper jaw; the arch wire is used for connecting incisor teeth and canine teeth of the upper jaw into a whole; the first draw hooks are bonded with the labial side surfaces of left-side and right-side canine teeth of the upper jaw; the second draw hooks are bonded with the buccal side surfaces of the left-side and right-side first premolar teeth of the upper jaw; a tension spring is arranged between the first draw hook and the second draw hook on the same side; two ends of the arch wire are inserted into the buccal tubes respectively. The device provided by the invention is applicable to the carrying out of gap closure 3 days after the first premolar teeth of the upper jaw are extracted, is simple in structure, and can be used for closing the gap within a shorter time and shortening an orthodontic course of treatment.

The invention discloses an experimental device applied to a small animal MRI experiment and a using method. The experimental device comprises an animal bed; the animal bed body is divided into an upper bed body and a lower bed body; a tooth rod bracket can be mounted on the lower bed body; the tooth rod bracket is used for connecting the lower bed body with a tooth rod; the tooth rod is used for fixing incisor teeth of a small animal and is provided with a gas anesthesia connecting port; the connecting port can be connected with an external gas anesthesia hose; ear rod brackets can be respectively fixed on two sides of the lower bed body; the ear rod brackets are used for connecting the lower bed body with ear rods; the ear rods are used for fixing the head of the small animal; the upper bed body can slide along the lower bed body so as to change the position relation between the upper bed body and the tooth rod and the ear rods to adapt to small animals with different body sizes; theupper bed body can be connected with an arc-shaped bed cover, wherein the bed cover is used for reducing heat loss of small animals; and a water circulation system is arranged in the upper bed body, wherein warm water can be introduced (flows out) from a water valve at one end of the upper bed body, and the warm water flows through a water bath pipeline to preserve heat of the small animal. The heat preservation requirement on the small animal is met, and anesthetic gas can be introduced.

The invention discloses an offshore net cage cultivation technology of cheilinus undulates. The offshore net cage cultivation technology is characterized in that: before the cultivation is started, for the introduced large-sized cheilinus undulates, incisor teeth are sheared off first, and thus the aggressiveness among the cheilinus undulates is reduced; the cheilinus undulates can be centrally fed for a period of time according to the condition of fishes; and when mutual aggressive behavior is found, the timely separated cultivation is required and one fish is fed in one cage, which is important guarantee for improving the cultivation survival rate. Aiming at a large amount of attaching organisms in an Atami area, the cultivation net cage is required to be timely cleaned so as to avoid the damage of the attaching organisms to the fishes. By adopting three technologies, huge loss caused by mutual killing among the fishes can be avoided and the cultivation benefit and the protection of resources are improved.

A semi-custom intraoral discluder device for preventing chronic tension and common migraine headaches and temporomandibular disorders that are caused or perpetuated by chronic activity of the temporalis muscle. The discluder includes a trough, contoured to encompass at least one maxillary or mandibular incisor, from which extends a protrusion, typically of a dome shape. The trough can be retained on the teeth by any adaptable material which can flow around the teeth and then maintain its shape. The adaptation of the retentive material can be performed by the end user, health care provider, or anyone trained in the art. Once in place in the wearer's mouth, one or two opposing incisor teeth will come into contact with the protrusion prior to the upper and lower posterior and / or canine teeth coming into contact, regardless of the position of the mandible, thereby reducing the intensity of the activity of the temporalis muscle.

The invention discloses an intraoral maxillary clasp type occlusal pad reverse headgear appliance for orthodontics of skeletal crossbite. The reverse headgear appliance has a structure as a palatal side base plate that covers all upper teeth; a back tooth occlusal pad and an incisor teeth cap are symmetrically arranged on the palatal side base plate; a permanent molar arrow clasp, a premolar arrow clasp, a front towing hook and a maxillary central incisor long arrow clasp are symmetrically embedded in the palatal side base plate, or a primary molar long arrow clasp, a front towing hook and a maxillary central incisor long arrow clasp are symmetrically embedded in the palatal side base plate, or a back tooth embrasure hook and a maxillary central incisor long arrow clasp are symmetrically embedded in the palatal side base plate. The front towing hook is located at the lip side and between a lateral incisor teeth and a canine tooth at a distance being 3-5 mm from a sulcus vestibularis, wherein an opening being inclined relative to an occlusal plane upwardly and backwardly at 45 degrees is formed in the front towing hook, and the front towing hook is bent outwardly in a U-shaped structure. The reverse headgear appliance has excellent fixation, is smart and comfort, allows people to speak and eat, reduces orthodontic time and is increased in adaptation disease, increases clinical curative rate and has excellent economic and social benefit.

The invention relates to the field of machinery, in particular to an electric toothbrush. A surrounding type self-adaptive electric toothbrush comprises an electric toothbrush body; the electric toothbrush body comprises a brush head; the brush head comprises a brush head handle; and a cam is arranged on the front portion of the brush head handle. According to the design of the invention, the surrounding type self-adaptive electric toothbrush is provided; the surrounding effect generated by three-sided bristles is changed along with the thickness from incisor teeth to molar teeth; the self-adaptive effect of automatic attachment of the bristles is used for meeting the tooth cleaning requirements of people with different oral cavities and tooth sizes; due to the design of the three-side bristles, the cleaning problem of areas which are not suitable for being brushed on the inner sides of teeth is solved, various bad tooth brushing habits are avoided, a user does not need to actively change the position of the brush head to find a cleaning point any more, the whole tooth brushing process can be completed only by pushing the brush head, the tooth brushing process is simplified, and the tooth brushing efficiency is improved.

The invention discloses a mouth holder with an adjustable spacing; the mouth holder comprises two bearers symmetrically arranged up and down, an upper tongue plate and a lower tongue plate; one end ofthe upper tongue plate is hinged to the side edge of the upper bearer via a pin shaft 1; one end of the lower tongue plate is hinged to the side edge of the lower bearer via a pin shaft 2; the lowertongue plate is arranged right below the upper tongue plate; an upper lug is fixedly connected in the middle lower part of the upper tongue plate; a lower lug is fixedly connected in the middle upperpart of the lower tongue plate; an adjusting device capable of adjusting length is arranged between the upper lug and the lower lug; the upper and lower bearers are connected via a support device. When a patient is treated with radiotherapy, the mouth holder is placed in the oral cavity of the patient, the patient incisor teeth bite in the bearer grooves, a screw rod is rotated to adjust the distance between the upper and lower tongue plates of the mouth holder, thus fixing the patient tongue, obtaining a better open mouth comfort level, reducing swallowing motion generation, preventing radiotherapy target displacement in radiotherapy, providing more accurate treatment, and obtaining very good clinic usage effects.

The invention discloses a micro-adjustment supporting device for dental examination and treatment of incisor teeth or unilateral molars and relates to a dental treatment supporting mechanism. One endof an elliptical plate (1) is hinged to one ends of two connecting plates B (11), the other end of one connecting plate B is hinged to one end of a connecting plate A (10), and the upper part of a tooth cushion block A (9) is movably connected with the corresponding connecting plate B and the connecting plate A; the other end of the other connecting plate B is hinged to one end of another connecting plate A, and the lower part of a tooth cushion block B (14) is movably connected with the other connecting plate B and the other connecting plate A; the other ends of the two connecting plates A are hinged to the two sides of a casing pipe (2); a diameter-reduceable smooth rod (23) is connected with a smooth hole (19) of the casing pipe; one end of the diameter-reduceable smooth rod is connected with one end of a screw rod (5); the screw rod is connected with a screw hole (28) of a convex block (4), and the other end of the screw rod is provided with a screwing mechanism. According to the device, the upper molar and the lower molar are supported by the tooth cushion block A and the tooth cushion block B, so that occlusion of teeth in a treatment process is prevented.

The invention discloses a tooth-shaped oral irrigator for preventing periodontal disease, and relates to the technical field of oral irrigators, the tooth-shaped oral irrigator comprises an upper tooth socket and a lower tooth socket, and two ends of the upper tooth socket and the lower tooth socket are connected through two support frames. Through the arrangement of the upper tooth socket and the lower tooth socket, upper teeth and lower teeth can be cleaned at the same time, through the arrangement of the water suction pipe, flushing water in an oral cavity can be sucked out through an external air suction pump, and through the arrangement of the water suction groove, tight suction between a water suction head and the inner wall of the oral cavity can be avoided; according to the invention, flushing water can always enter the water suction head from the water suction groove, excessive retention of the flushing water in the oral cavity is prevented, the flushing water is prevented from being swallowed, an external controller can be switched on when upper and lower teeth are occluded by arranging a metal sheet and a metal block, and after an occlusion valve in the occlusion pipe is occluded and extruded by incisor teeth, the occlusion valve can be opened and closed. When the occlusion valve deforms, the notch can be opened, so that the aims of cleaning and pumping water through tooth occlusion are fulfilled.

The invention relates to a virtual tooth root generation method capable of controlling the shape. The method mainly comprises the following steps of: 1, establishing a three-dimensional coordinate system M1, and drawing a tooth root virtual contour in an X1Y1 plane of the three-dimensional coordinate system M1, 2, determining an actual boundary line L of any tooth T, 3, selecting any point p on the boundary line L, and determining a plane D, 4, establishing a three-dimensional coordinate system M2, 5, determining a transformation matrix A of the tooth root virtual contour from the three-dimensional coordinate system M1 to the three-dimensional coordinate system M2, and 6, obtaining a final curved surface K1, namely the required virtual tooth root, by utilizing the transformation matrix A.By means of the method, virtual tooth roots in different shapes can be generated for incisor teeth, canine teeth and molar teeth, the recognition degree of various teeth is improved, and the method can be achieved only through one algorithm.

The invention provides a nipple, which relates to the technical field of medical appliances, comprising a nipple body with a U-shaped structure, a tongue pressing part connected with the nipple body for restricting the movement of the tongue, and the tongue pressing part has a communication channel communicating with the outside. By setting the nipple as a U-shaped structure, that is, a tooth-shaped structure, so that the nipple covers the whole tooth, and the existing nipple is an ordinary O-shaped nipple, the wrapping property is not strong, only the movement of the incisor teeth is restricted, the comfort is poor, and the endoscope is easy to be damaged by the patient, thereby affecting the treatment. The bite nozzle provided by the invention is a U-shaped structure, that is, the bite nozzle is arranged in an oral structure, so that when in use, the bite nozzle covers the whole tooth, the teeth between the upper row and the lower row are no longer in contact, the comfort degree is higher, the endoscope is not easy to be damaged, and the treatment can be smoothly carried out.

The invention discloses an incisor tooth brush head which comprises bristles and a connection portion. The bristles are vertically arranged on a brush base, and the connection portion is arranged at one end of the brush base and connected with a handle. The bristles comprise incisor tooth bristles and tooth cleaning bristles. The tooth cleaning bristles comprise tooth cleaning brush bodies and tooth cleaning brush balls, wherein tooth cleaning brush bodies are arranged on the lower portions and connected with the brush base, and the tooth cleaning brush balls are arranged on the tops of the tooth cleaning brush bodies. The tooth cleaning brush bodies are in the shape of big-end-down frustums. The conical faces of the frustums are concaved inwards to be in an arc shape. The tooth cleaning brush balls are solid balls. The incisor tooth bristles comprise incisor tooth brush bodies and incisor tooth brush balls, wherein the incisor tooth brush bodies are arranged on the lower portion and connected with the brush base, and the incisor tooth brush balls are arranged on the tops of the incisor tooth brush bodies. The incisor tooth brush bodies are in the shape of columns with the middles concaved inwards in an arc shape. The incisor tooth brush balls are hollow balls. The problem that an existing tooth brush head cannot clean and massage incisor teeth easily can be solved.

Described is an orthodontic aligner implement that can ensure the accuracy and efficiency of clear aligner orthodontic therapies as well as increase patient compliance by reducing discomfort and combining functionality into a breath-freshening medium. The implement includes a consumable mass having at least two channels disposed on opposite sides of the mass and traversing the width of the mass. The channels are adapted to seat between opposing anterior or incisor teeth.